We're dividing 403515 by 53 
We want to figure out the number of times 403515 can be divided by 53.

Going ahead to step 1:
53 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 53

Going ahead to step 2:
53 goes into 40 0 times with a remainder of 40.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 40 to get 40.
Fetch the next digit (3) from the dividend, attach it to 40 and continue: 403 / 53

Step 3:
53 goes into 403 7 times with a remainder of 32.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtract 371 from 403 to get 32.
Grab the next digit (5) from the dividend, add it to 32, then carry on: 325 / 53

Going ahead to step 4:
325 divided by 53 is 6 with a remainder of 7.
Record the quotient 6 as the next digit in the result. 
Result so far: 76.0
Deduct 318 from 325 and we're left with 7.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 53

Moving on to step 5:
If we divide 71 by 53, we get 1 and a remainder of 18.
The next digit of our result is 1. 
Result so far: 761.0
If we take 53 away from 71, we end up with 18.
Take the next digit (5) from the dividend and append it to 18, then repeat: 185 / 53

On to step 6:
185 divided by 53 is 3 with a remainder of 26.
Use 3 as the next digit of our solution. 
Result so far: 7613.0
Subtract 159 from 185 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 7:
53 goes into 260 4 times with a remainder of 48.
The next digit of our result is 4. 
Result so far: 7613.4
Subtracting 212 from 260 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 8:
53 can be fit into 480 9 times, resulting in a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 7613.49
Deduct 477 from 480 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 9:
The number 53 fits into 30 0 times, leaving a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 7613.49
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 10:
When dividing 300 by 53, we get 5 with a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 7613.4905
Subtract 265 from 300 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 11:
When dividing 350 by 53, we get 6 with a remainder of 32.
The number 6 becomes the next digit in our result. 
Result so far: 7613.49056
If we subtract 318 from 350, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 12:
53 goes into 320 6 times with a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 7613.490566
If we subtract 318 from 320, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The final outcome is 7613.490566, with a leftover of 2e-07.